A top-and-bottom cover packaging box with self-locking function

Abstract

The utility model relates to packing box technical field, and disclose a top and bottom cover packing box with self -locking function, it includes box seat, the both sides symmetry of box seat inside are provided with the sliding slot, the both sides of box seat inside are provided with the locating slot, and the inside of box seat is provided with the layered mechanism, and the both sides of box seat are provided with first rectangular groove and second rectangular groove respectively, the inner wall of second rectangular groove is fixedly connected with first spring, one side of first spring is fixedly connected with first limit block, and first limit block is slidably arranged in second rectangular groove, and the top of first limit block is fixedly connected with wedge, and wedge is slidably arranged in first sliding slot, and the top of box seat is provided with box cover, the utility model effectively prevent accidental opening in the transportation process, improve packing stability, protect internal article, also can be according to the flexible adjustment layered height of article size, adapt to different specifications article, improve the versatility and practicality of packing box.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box technology, specifically a top and bottom lid packaging box with a self-locking function. Background Technology

[0002] Top and bottom lid packaging boxes are widely used in the packaging of gifts, food, and electronic products due to their simple structure and elegant appearance.

[0003] Existing top-and-bottom box packaging typically consists of an upper lid and a lower box. The closing method is mostly a simple nesting, lacking a self-locking structure. During transportation and handling, the upper lid is easily detached due to vibration and collision, causing damage to the contents. At the same time, the layered structure of existing top-and-bottom box packaging is mostly fixed, and the layer height cannot be adjusted according to the size of the items, resulting in poor applicability and difficulty in meeting the packaging needs of items of different sizes. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a top and bottom lid packaging box with self-locking function, which effectively solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-locking top and bottom lid packaging box, including a box base, on both sides of the box base are symmetrically provided with sliding grooves, and on both sides of the box base are provided with positioning grooves. The box base is provided with a layering mechanism. A first rectangular groove and a second rectangular groove are respectively provided on both sides of the box base. A first spring is fixedly connected to the inner wall of the second rectangular groove. A first limiting block is fixedly connected to one side of the first spring. The first limiting block is slidably disposed in the second rectangular groove. A wedge block is fixedly connected above the first limiting block. The wedge block is slidably disposed in the first sliding groove. A box lid is provided on the top of the box base. A third rectangular groove, a fourth rectangular groove and a slot are respectively provided on both sides of the box lid. A second spring is fixedly connected to the inner wall of the fourth rectangular groove. A second limiting block is fixedly connected to one side of the second spring. The second limiting block is slidably disposed in the fourth rectangular groove. A moving block is fixedly connected below the second limiting block. The moving block is slidably disposed in the third rectangular groove. A rotating block is rotatably connected to one side of the moving block. A slot is fixedly connected below the rotating block. The size of the slot is adapted to the slot.

[0006] Preferably, the layering mechanism includes a layering plate, with pads symmetrically connected to both sides of the layering plate. The pads are slidably disposed in a groove. A housing is fixedly connected to the top of the layering plate. A rotating rod is rotatably connected to the lower wall inside the housing. A knob is fixedly connected to the top of the rotating rod extending through to the top of the housing. A rotating disk is fixedly sleeved on the outside of the rotating rod. Vertical rods are fixedly connected to both sides above the rotating disk. Connecting rods are movably sleeved on the outside of both vertical rods.

[0007] Preferably, a positioning rod is rotatably connected to one side of each connecting rod. One side of the positioning rod extends through to the outside of the housing. The positioning rod is movably inserted into the positioning groove. A horizontal plate is fixedly sleeved on the outside of the positioning rod. Both sides of the horizontal plate are in contact with the inner wall of the housing. A third spring is fixedly connected to one side of the horizontal plate. One side of the third spring is fixedly connected to the inner wall of the housing. The third spring is sleeved on the outside of the positioning rod.

[0008] Preferably, one side of the wedge extends into the interior of the third rectangular groove, and one side of the moving block contacts the wedge.

[0009] Preferably, an elastic pad is fixedly connected to the bottom of the box base, and handles are rotatably connected to both sides of the box lid.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model utilizes the inner wall of the lid as an active inclined surface to press the driven inclined surface of the wedge block when the lid is closed. When the lid is modified, the wedge block is inserted into the third rectangular groove to achieve self-locking. When unlocking is required, the rotating block is rotated, which drives the locking block to rotate to the side of the slot. Then, the rotating block is pressed, which drives the moving block to move. At the same time, the locking block moves into the slot, and the moving block drives the second limiting block and the wedge block to move. The second limiting block compresses the second spring, and at the same time, the wedge block moves into the first rectangular groove. The wedge block drives the first limiting block to move and compresses the first spring. Then, the lid can be opened by pulling the handle upward. This effectively prevents accidental opening during transportation, improves packaging stability, and protects the contents.

[0012] 2. This utility model uses a knob to drive a rotating rod and a rotating disk to rotate. The vertical rod rotates synchronously with the rotating disk and pushes the connecting rod, causing the positioning rod to retract into the housing. The third spring is compressed, and at this time, the layering plate can be moved up and down along the slide groove to adjust to the required height. After releasing the knob, the third spring returns to its original position and pushes the horizontal plate, so that the positioning rod is embedded into the corresponding positioning groove of the box base, thereby fixing the layering height. The layering height can be flexibly adjusted according to the size of the items, adapting to different specifications of items and improving the versatility and practicality of the packaging box. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0018] Figure 4 This is a schematic diagram of the layered mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the shell of this utility model;

[0020] In the diagram: 1. Box base; 2. Box lid; 3. Handle; 4. Elastic pad; 5. Layering mechanism; 501. Layering plate; 502. Pad block; 503. Shell; 504. Rotating rod; 505. Rotating disk; 506. Vertical rod; 507. Knob; 508. Connecting rod; 509. Positioning rod; 510. Horizontal plate; 511. Third spring; 6. Slide groove; 7. Positioning groove; 8. First rectangular groove; 9. Second rectangular groove; 10. First spring; 11. First limiting block; 12. Wedge block; 13. Third rectangular groove; 14. Fourth rectangular groove; 15. Second spring; 16. Second limiting block; 17. Slot; 18. Moving block; 19. Rotating block; 20. Locking block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example 1, by Figures 1-5The present invention includes a box base 1, with an elastic pad 4 fixedly connected to the bottom of the box base 1. The elastic pad 4 not only buffers the impact force when the device is placed and reduces the damage to the internal items caused by vibration, but also increases the friction with the placement surface to achieve an anti-slip effect and improve placement stability. The box base 1 has symmetrically provided sliding grooves 6 on both sides inside, which provide precise guidance for the sliding of the layering mechanism 5. Positioning grooves 7 are provided on both sides inside the box base 1, which are used to insert and position with positioning rods 509 to achieve multi-level height fixation of the layering plate 501. The box base 1 is equipped with a layering mechanism 5 inside. A first rectangular groove 8 and a second rectangular groove 9 are respectively provided on both sides of the box base 1. A first spring 10 is fixedly connected to the inner wall of the second rectangular groove 9. A first limiting block 11 is fixedly connected to one side of the first spring 10. The core function of the first spring 10 is to provide a reset spring for the wedge block 12. The first limiting block 11 is slidably disposed in the second rectangular groove 9. A wedge block 12 is fixedly connected above the first limiting block 11. The box is mounted in the first slide groove 6. A box cover 2 is located above the box base 1. Handles 3 are rotatably connected to both sides of the box cover 2. When unfolded, the handles 3 are easy to hold and carry. When folded, they fit snugly against the outer wall of the box cover 2 without taking up extra space. A third rectangular groove 13, a fourth rectangular groove 14, and a slot 17 are respectively opened on both sides of the box cover 2. One side of the wedge block 12 extends into the interior of the third rectangular groove 13. A second spring 15 is fixedly connected to the inner wall of the fourth rectangular groove 14. A second limit is fixedly connected to one side of the second spring 15. Position block 16, second limiting block 16 is slidably disposed in fourth rectangular groove 14, and moving block 18 is fixedly connected below second limiting block 16. Moving block 18 is slidably disposed in third rectangular groove 13. One side of moving block 18 is in contact with wedge block 12. Rotating block 19 is rotatably connected to one side of moving block 18. Locking block 20 is fixedly connected below rotating block 19. The size of locking block 20 is adapted to locking groove 17. Rotating block 19 is rotatably connected to one side of moving block 18 by pin shaft, which is convenient for manual rotation.

[0023] The layering mechanism 5 includes a layering plate 501. Pads 502 are symmetrically connected to both sides of the layering plate 501. The pads 502 are slidably disposed within a slide groove 6. A housing 503 is fixedly connected above the layering plate 501. A rotating rod 504 is rotatably connected to the lower wall inside the housing 503. A knob 507 is fixedly connected to the upper part of the rotating rod 504, extending through to the upper part of the housing 503. The knob 507 allows the operator to rotate the rotating rod 504. A rotating disk 505 is fixedly sleeved on the outside of the rotating rod 504. Vertical rods 506 are fixedly connected to both sides above the rotating disk 505. Connecting rods 508 are movably sleeved on the outside of each of the two vertical rods 506. A positioning rod 509 is rotatably connected to one side of each connecting rod 508. The core is used to convert the circular motion of the rotating disk 505 into the linear motion of the positioning rod 509. One side of the positioning rod 509 extends through to the outside of the housing 503. The positioning rod 509 is movably inserted into the positioning groove 7. A horizontal plate 510 is fixedly sleeved on the outside of the positioning rod 509. The two sides of the horizontal plate 510 are in contact with the inner wall of the housing 503. The horizontal plate 510 and the inner wall of the housing 503 are in clearance fit, which plays a limiting and guiding role to prevent the positioning rod 509 from tilting. A third spring 511 is fixedly connected to one side of the horizontal plate 510. One side of the third spring 511 is fixedly connected to the inner wall of the housing 503. The third spring 511 is sleeved on the outside of the positioning rod 509. The initial state of the third spring 511 is naturally extended, providing the positioning rod 509 with a return spring force.

[0024] Working principle: In use, when the lid 2 is closed, the inner wall of the lid 2 acts as an active inclined surface, pressing against the driven inclined surface of the wedge block 12. When the lid 2 is closed, the wedge block 12 inserts into the third rectangular groove 13, completing self-locking. When unlocking is required, the rotating block 19 is rotated, causing the locking block 20 to rotate to the side of the slot 17. Then, the rotating block 19 is pressed, causing the moving block 18 to move. At the same time, the locking block 20 moves into the slot 17, and the moving block 18 causes the second limiting block 16 and the wedge block 12 to move. The second limiting block 16 compresses the second spring 15, and at the same time, the wedge block 12 moves into the first rectangular groove 8. The shape block 12 drives the first limiting block 11 to move and compress the first spring 10. Then, the handle 3 pulls the box cover 2 upward to open the box cover 2. The knob 507 drives the rotating rod 504 and the rotating disk 505 to rotate. The vertical rod 506 rotates synchronously with the rotating disk 505 and pushes the connecting rod 508, causing the positioning rod 509 to retract into the housing 503. The third spring 511 is compressed. At this time, the layer plate 501 can be moved up and down along the slide groove 6 to adjust to the required height. After releasing the knob 507, the third spring 511 returns to its original position and pushes the horizontal plate 510, so that the positioning rod 509 is embedded in the corresponding positioning groove 7 of the box base 1, thereby fixing the layer height.

Claims

1. A self-locking top and bottom lid packaging box, comprising a box base (1), characterized in that: The box base (1) has symmetrical sliding grooves (6) on both sides inside, and positioning grooves (7) on both sides inside. The box base (1) has a layering mechanism (5) inside. The box base (1) has a first rectangular groove (8) and a second rectangular groove (9) on both sides. A first spring (10) is fixedly connected to the inner wall of the second rectangular groove (9). A first limiting block (11) is fixedly connected to one side of the first spring (10). The first limiting block (11) is slidably disposed in the second rectangular groove (9). A wedge block (12) is fixedly connected above the first limiting block (11). The wedge block (12) is slidably disposed in the first sliding groove (6). A box cover (2) is disposed above the box base (1). The lid (2) has a third rectangular groove (13), a fourth rectangular groove (14) and a slot (17) on both sides respectively. A second spring (15) is fixedly connected to the inner wall of the fourth rectangular groove (14). A second limiting block (16) is fixedly connected to one side of the second spring (15). The second limiting block (16) is slidably disposed in the fourth rectangular groove (14). A moving block (18) is fixedly connected below the second limiting block (16). The moving block (18) is slidably disposed in the third rectangular groove (13). A rotating block (19) is rotatably connected to one side of the moving block (18). A slot (20) is fixedly connected below the rotating block (19). The size of the slot (20) is compatible with the slot (17).

2. A self-locking top and bottom lid packaging box according to claim 1, characterized in that: The layering mechanism (5) includes a layering plate (501), with pads (502) symmetrically connected on both sides of the layering plate (501). The pads (502) are slidably disposed in the slide groove (6). A housing (503) is fixedly connected above the layering plate (501). A rotating rod (504) is rotatably connected to the lower wall inside the housing (503). A knob (507) is fixedly connected to the upper part of the rotating rod (504) extending through to the upper part of the housing (503). A rotating disk (505) is fixedly sleeved on the outside of the rotating rod (504). Vertical rods (506) are fixedly connected to both sides above the rotating disk (505). A connecting rod (508) is movably sleeved on the outside of both vertical rods (506).

3. A self-locking top and bottom lid packaging box according to claim 2, characterized in that: One side of each connecting rod (508) is rotatably connected to a positioning rod (509). One side of the positioning rod (509) extends through to the outside of the housing (503). The positioning rod (509) is movably inserted into the positioning groove (7). A horizontal plate (510) is fixedly sleeved on the outside of the positioning rod (509). Both sides of the horizontal plate (510) are in contact with the inner wall of the housing (503). A third spring (511) is fixedly connected to one side of the horizontal plate (510). One side of the third spring (511) is fixedly connected to the inner wall of the housing (503). The third spring (511) is sleeved on the outside of the positioning rod (509).

4. A self-locking top and bottom lid packaging box according to claim 1, characterized in that: One side of the wedge block (12) extends into the interior of the third rectangular groove (13), and one side of the moving block (18) contacts the wedge block (12).

5. A self-locking top and bottom lid packaging box according to claim 1, characterized in that: An elastic pad (4) is fixedly connected to the bottom of the box base (1), and handles (3) are rotatably connected to both sides of the box cover (2).

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